Revert "make success and error pages immutable, isolate changes from …

…user application"

This reverts commit 213b935.

apps/public/public.go

@@ -543,11 +543,8 @@ func WithSystemBrowserOptions(successPage []byte, errorPage []byte) interface {
 			func(a any) error {
 				switch t := a.(type) {
 				case *interactiveAuthOptions:
-					t.successPage = make([]byte, len(successPage))
-					copy(t.successPage, successPage)
-
-					t.errorPage = make([]byte, len(errorPage))
-					copy(t.errorPage, errorPage)
+					t.successPage = successPage
+					t.errorPage = errorPage
 				default:
 					return fmt.Errorf("unexpected options type %T", a)
 				}